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diff --git a/changes.txt b/changes.txt index 18b43b8d8186..f7eee1d568f0 100644 --- a/changes.txt +++ b/changes.txt @@ -1,4 +1,204 @@ ---------------------------------------- +29 June 2017. Summary of changes for version 20170629: + + +1) ACPICA kernel-resident subsystem: + +Tables: Implemented a deferred ACPI table verification. This is useful +for operating systems where the tables cannot be verified in the early +initialization stage due to early memory mapping limitations on some +architectures. Lv Zheng. + +Tables: Removed the signature validation for dynamically loaded tables. +Provides compatibility with other ACPI implementations. Previously, only +SSDT tables were allowed, as per the ACPI specification. Now, any table +signature can be used via the Load() operator. Lv Zheng. + +Tables: Fixed several mutex issues that could cause errors during table +acquisition. Lv Zheng. + +Tables: Fixed a problem where an ACPI warning could be generated if a +null pointer was passed to the AcpiPutTable interface. Lv Zheng. + +Tables: Added a mechanism to handle imbalances for the AcpiGetTable and +AcpiPutTable interfaces. This applies to the "late stage" table loading +when the use of AcpiPutTable is no longer required (since the system +memory manager is fully running and available). Lv Zheng. + +Fixed/Reverted a regression during processing of resource descriptors +that contain only a single EndTag. Fixes an AE_AML_NO_RESOURCE_END_TAG +exception in this case. + +Headers: IORT/SMMU support: Updated the SMMU models for Revision C of the +I/O Remapping specification. Robin Murphy <robin.murphy@arm.com> + +Interpreter: Fixed a possible fault if an Alias operator with an invalid +or duplicate target is encountered during Alias creation in +AcpiExCreateAlias. Alex James <theracermaster@gmail.com> + +Added an option to use designated initializers for function pointers. +Kees Cook <keescook@google.com> + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Allow compilation of External declarations with target pathnames +that refer to existing named objects within the table. Erik Schmauss. + +iASL: Fixed a regression when compiling FieldUnits. Fixes an error if a +FieldUnit name also is declared via External in the same table. Erik +Schmauss. + +iASL: Allow existing scope names within pathnames used in External +statements. For example: + External (ABCD.EFGH) // ABCD exists, but EFGH is truly external + Device (ABCD) + +iASL: IORT ACPI table: Implemented changes required to decode the new +Proximity Domain for the SMMUv3 IORT. Disassembler and Data Table +compiler. Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com> + +Disassembler: Don't abort disassembly on errors from External() +statements. Erik Schmauss. + +Disassembler: fixed a possible fault when one of the Create*Field +operators references a Resource Template. ACPICA Bugzilla 1396. + +iASL: In the source code, resolved some naming inconsistences across the +parsing support. Fixes confusion between "Parse Op" and "Parse Node". +Adds a new file, aslparseop.c + +---------------------------------------- +31 May 2017. Summary of changes for version 20170531: + + +0) ACPI 6.2 support: + +The ACPI specification version 6.2 has been released and is available at +http://uefi.org/specifications + +This version of ACPICA fully supports the ACPI 6.2 specification. Changes +are summarized below. + +New ACPI tables (Table Compiler/Disassembler/Templates): + HMAT (Heterogeneous Memory Attributes Table) + WSMT (Windows SMM Security Mitigation Table) + PPTT (Processor Properties Topology Table) + +New subtables for existing ACPI tables: + HEST (New subtable, Arch-deferred machine check) + SRAT (New subtable, Arch-specific affinity structure) + PCCT (New subtables, Extended PCC subspaces (types 3 and 4)) + +Simple updates for existing ACPI tables: + BGRT (two new flag bits) + HEST (New bit defined for several subtables, GHES_ASSIST) + +New Resource Descriptors and Resource macros (Compiler/Disassembler): + PinConfig() + PinFunction() + PinGroup() + PinGroupConfig() + PinGroupFunction() + New type for hardware error notification (section 18.3.2.9) + +New predefined names/methods (Compiler/Interpreter): + _HMA (Heterogeneous Memory Attributes) + _LSI (Label Storage Information) + _LSR (Label Storage Read) + _LSW (Label Storage Write) + +ASL grammar/macro changes (Compiler): + For() ASL macro, implemented with the AML while operator + Extensions to Concatenate operator + Support for multiple definition blocks in same ASL file + Clarification for Buffer operator + Allow executable AML code underneath all scopes (Devices, etc.) + Clarification/change for the _OSI return value + ASL grammar update for reference operators + Allow a zero-length string for AML filename in DefinitionBlock + +Miscellaneous: + New device object notification value + Remove a notify value (0x0C) for graceful shutdown + New UUIDs for processor/cache properties and + physical package property + New _HID, ACPI0014 (Wireless Power Calibration Device) + + +1) ACPICA kernel-resident subsystem: + +Added support to disable ACPI events on hardware-reduced platforms. +Eliminates error messages of the form "Could not enable fixed event". Lv +Zheng + +Fixed a problem using Device/Thermal objects with the ObjectType and +DerefOf ASL operators. This support had not been fully/properly +implemented. + +Fixed a problem where if a Buffer object containing a resource template +was longer than the actual resource template, an error was generated -- +even though the AML is legal. This case has been seen in the field. + +Fixed a problem with the header definition of the MADT PCAT_COMPAT flag. +The values for DUAL_PIC and MULTIPLE_APIC were reversed. + +Added header file changes for the TPM2 ACPI table. Update to new version +of the TCG specification. Adds a new TPM2 subtable for ARM SMC. + +Exported the external interfaces AcpiAcquireMutex and AcpiReleaseMutex. +These interfaces are intended to be used only in conjunction with the +predefined _DLM method (Device Lock Method). "This object appears in a +device scope when AML access to the device must be synchronized with the +OS environment". + +Example Code and Data Size: These are the sizes for the OS-independent +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The +debug version of the code includes the debug output trace mechanism and +has a much larger code and data size. + + Current Release: + Non-Debug Version: 143.1K Code, 60.0K Data, 203.1K Total + Debug Version: 204.0K Code, 84.3K Data, 288.3K Total + Previous Release: + Non-Debug Version: 141.7K Code, 58.5K Data, 200.2K Total + Debug Version: 207.5K Code, 82.7K Data, 290.2K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Fixed a problem where an External() declaration could not refer to +a Field Unit. Erik Schmauss. + +Disassembler: Improved support for the Switch/Case operators. This +feature will disassemble AML code back to the original Switch operators +when possible, instead of an If..Else sequence. David Box + +iASL and disassembler: Improved the handling of multiple extraneous +parentheses for both ASL input and disassembled ASL output. + +Improved the behavior of the iASL compiler and disassembler to detect +improper use of external declarations + +Disassembler: Now aborts immediately upon detection of an unknown AML +opcode. The AML parser has no real way to recover from this, and can +result in the creation of an ill-formed parse tree that causes errors +later during the disassembly. + +All tools: Fixed a problem where the Unix application OSL did not handle +control-c correctly. For example, a control-c could incorrectly wake the +debugger. + +AcpiExec: Improved the Control-C handling and added a handler for +segmentation faults (SIGSEGV). Supports both Windows and Unix-like +environments. + +Reduced the verbosity of the generic unix makefiles. Previously, each +compilation displayed the full set of compiler options. This has been +eliminated as the options are easily inspected within the makefiles. Each +compilation now results in a single line of output. + +---------------------------------------- 03 March 2017. Summary of changes for version 20170303: |